package com.xzt.meeting.utils;

import java.util.HashMap;

/**
 * @Author xzt
 * @Date 2022/5/7 9:17
 * @Version 1.0
 * @Introduce
 */
public class MeetingHashMap extends HashMap {
    @Override
    public Object get(Object key) {

        Object obj = super.get(key);

        // 如果是null,那么就返回 ""
        return obj == null ? "" : obj;

    }
}
